diff --git a/Modules/Bundles/org.mitk.gui.qt.extapplication/documentation/MitkExtQtHelpCollectionProject.qhcp b/Modules/Bundles/org.mitk.gui.qt.extapplication/documentation/MitkExtQtHelpCollectionProject.qhcp
index 5e40147f58..aff4b703ff 100644
--- a/Modules/Bundles/org.mitk.gui.qt.extapplication/documentation/MitkExtQtHelpCollectionProject.qhcp
+++ b/Modules/Bundles/org.mitk.gui.qt.extapplication/documentation/MitkExtQtHelpCollectionProject.qhcp
@@ -1,17 +1,17 @@
 <?xml version="1.0" encoding="utf-8" ?>
 <QHelpCollectionProject version="1.0">
      <assistant>
          <title>MITK Help</title>
          <startPage>qthelp://org.mitk.gui.qt.extapplication/bundle/index.html</startPage>
          <enableFilterFunctionality>false</enableFilterFunctionality>
          <enableDocumentationManager>false</enableDocumentationManager>
          <enableAddressBar visible="false">true</enableAddressBar>
-         <cacheDirectory>MitkExt</cacheDirectory>
+         <cacheDirectory base="collection">qhc_cache</cacheDirectory>
          <aboutMenuText>
              <text>About MITK Help</text>
          </aboutMenuText>
      </assistant>
      <docFiles>
          
      </docFiles>
 </QHelpCollectionProject>